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Set traffic areas
You set Traffic areas via d-o combination. Traffic areas are used to manipulate the movements of dwarves. Traffic areas can be designated as high, normal, low or restricted. When walking from one point to another, dwarves consider these designations in finding the shortest path.
For example, a dwarf will choose a 14 tile high traffic route (14*1=14) over a 3 tile low traffic route (3*5=15).[Verify]
Setting Restricted does not forbid a dwarf from travelling over those squares, but rather makes them willing to walk around them - for the normal cost table, 12.5 times further, or up to 25 times longer if there is an alternative high-traffic path.
Default Traffic Weights
These numbers have been taken from /data/init.txt
| Designation | Cost |
|---|---|
| High | 1 |
| Normal | 2 |
| Low | 5 |
| Restricted | 25 |
Reasons for Setting Traffic Areas
Reasons for a player wishing to set traffic areas include the following
- It is often a good idea to set any water source in a biome with seasonal freezing to restricted so your dwarves will be less likely to be caught on it when it melts.
- For a butcher's shop that has possible thoroughfare; some dwarves get disturbed if they walk through it and see an animal being slaughtered.
- Reducing traffic through an area that will occasionally get flooded, routing dwarves around it in preference.
- Encouraging Dwarves outside to walk on existing paths to allow trees to grow in areas that would otherwise have too much traffic.
If you have an area that absolutely must not be stepped on by dwarves, consider walls.